[travel|events] Forthcoming travel and event schedule

Mostly just to have it out there, but also to give people who might want to catch up with me the chance to know where I’ll be, here’s my forthcoming travel and event schedule. As always, this is health permitting, though I should be clear through May regardless. I haven’t made plans past June except tentatively for Worldcon due to the significant uncertainly of my cancer status going forward.